Lighting Circuits Patents (Class 307/10.8)
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Patent number: 9358918Abstract: A vehicle headlamp includes a first lamp unit having a first irradiation range, the first lamp unit being configured such that the first irradiation range is adjustable in a horizontal direction, and a second lamp unit having a second irradiation range, the second lamp unit being configured such that the second irradiation range is adjustable in a vertical direction. A resolution of the second lamp unit with respect to the second irradiation range is higher than a resolution of the first lamp unit with respect to the first irradiation range.Type: GrantFiled: July 24, 2013Date of Patent: June 7, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Kiyotaka Mochizuki, Naohisa Tatara
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Patent number: 9333903Abstract: Disclosed are a headlight apparatus and a method of controlling the same. The headlight apparatus provided in a transportation includes a light source unit including at least one light source and emitting a light in a forward direction of the transportation, a light source driving unit supplying a driving current to the at least one light source included in the light source unit, and a control unit receiving information about a driving environment of the transportation and determining a driving condition of the light source unit by using the received information about the driving environment. The driving condition of the light source unit includes a driving current value corresponding to a brightness of the at least one light source included in the light source unit.Type: GrantFiled: January 14, 2013Date of Patent: May 10, 2016Assignee: LG Innotek Co., Ltd.Inventor: Jong Woon Kim
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Patent number: 9327639Abstract: A vehicle headlamp includes a first lamp unit having a first irradiation range, the first lamp unit being configured such that the first irradiation range is adjustable in a horizontal direction, and a second lamp unit having a second irradiation range, the second lamp unit being configured such that the second irradiation range is adjustable in a vertical direction. A resolution of the second lamp unit with respect to the second irradiation range is higher than a resolution of the first lamp unit with respect to the first irradiation range.Type: GrantFiled: July 24, 2013Date of Patent: May 3, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Kiyotaka Mochizuki, Naohisa Tatara
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Patent number: 9260051Abstract: A method for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle. The method includes detecting a time curve of a pitch rate of the vehicle or a value that is dependent on the pitch rate and/or of a roll rate of the vehicle or a value that is dependent on the roll rate. The method also includes ascertaining an envelope curve and/or an amplitude of the time curve and/or an average value of the time curve. The method also includes providing a control signal for adapting the upper headlight beam boundary of the headlight beam.Type: GrantFiled: December 3, 2012Date of Patent: February 16, 2016Assignee: ROBERT BOSCH GMBHInventors: Tobias Ehlgen, Johannes Foltin, Robert Meisner
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Patent number: 9192031Abstract: A resonating power transfer system for wireless vehicle lights. A power source supplies a direct electric current to a transmitting power module. A resonator control board and oscillating electric circuit converts the direct electric current into an alternating electric current. A source resonator coil generates an oscillating magnetic field in response to receiving the alternating electric current. A user controller includes a wireless communication transmitter transmits a wireless data signal to a wireless communication receiver. A wireless LED light device includes a receiving resonator coil and a set of LED lights. The receiving resonator coil generates an electric current in a presence of the oscillating magnetic field. The electric current powers the set of LED lights. The wireless communication receiver receives the wireless data signal from the wireless communication transmitter. An LED controller performs a control function on the set of LED lights in response to receiving the data signal.Type: GrantFiled: March 8, 2014Date of Patent: November 17, 2015Assignee: Feniex Industries Inc.Inventor: Hamza Deyaf
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Patent number: 9103312Abstract: A vehicle control apparatus includes: detecting means (3) for detecting an open state or closed state of a hood of an engine room of a vehicle; control means (1) for controlling a power supply to an onboard device each time an input operation is performed on a switch (2); and drive control means (4) for starting or stopping an engine of the vehicle in accordance with whether or not a state of the vehicle satisfies a predetermined condition. The control means stops the power supply to the onboard device if the input operation is performed on the switch when the detecting means detects that the hood is open in a state where the engine has been stopped by the drive control means.Type: GrantFiled: February 25, 2011Date of Patent: August 11, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Kouki Moriya
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Patent number: 9061772Abstract: A system and methods for automatic intensity control of dual mode lights are presented. An ambient light level is sensed on a first side of a vehicle to obtain a sensed ambient light level, and a light level of a light source on a second side of the vehicle opposite the first side is adjusted based on the sensed ambient light level.Type: GrantFiled: June 11, 2012Date of Patent: June 23, 2015Assignee: THE BOEING COMPANYInventor: Mark Alan Hartwell
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Patent number: 9024470Abstract: A dimmable LED reading light unit according to exemplary embodiments of the invention, in particular for a passenger transportation vehicle, such as an airplane, a ship, a bus, or a railcar, comprises an input connectable to a potentiometer being supplied with a constant supply voltage and outputting a direct voltage having a voltage intensity corresponding to a selected dimming rate; an electronic measuring and control unit connected to at least one LED and providing an operating current to the at least one LED, and method of operating same.Type: GrantFiled: March 6, 2014Date of Patent: May 5, 2015Assignee: Goodrich Lighting Systems GmbHInventor: Steffen Roebke
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Patent number: 9013058Abstract: The light distribution region of headlights (12) is divided into a plurality of regions, and each of the divided regions can be irradiated or non-irradiated by light, and the light distribution characteristic can be changed separately for each divided region. The radiation or non-radiation of light to each divided region is controlled by a light distribution control ECU (14). Besides, light reflection/emission regions (hatched portions in FIG. 4) are detected by detecting light regions of reflection, such as white lines, reflectors, etc., and light regions of light emission, such as street lights or the like, are detected. Then, divided regions corresponding to light distribution region irradiated by the headlights (12) which correspond to the detected light reflection/emission regions are specifically determined, and the headlights (12) are controlled so that the light radiated to the specifically determined divided regions 22 becomes dark in light distribution relative to other regions.Type: GrantFiled: March 2, 2009Date of Patent: April 21, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventor: Shinya Watanabe
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Patent number: 9006922Abstract: A power supply apparatus for an electric bicycle is disclosed. The apparatus may include i) a battery pack and ii) a keybox connected to the battery pack and controlling on/off operations of the power supply apparatus. The keybox may further include i) a key set configured to receive a key cylinder that is moveable according to the rotation of a key inserted into the key box, ii) a contact terminal that includes a first plurality of sub-terminals, iii) a terminal base including at least one second sub-terminal connectable to and detachable from at least one of the first sub-terminals and iv) a keybox case configured to receive the key set, the contact terminal, and the terminal base. The terminal base may have a plate shape with a polygonal periphery surface at least part of which contacts an inner portion of the keybox case.Type: GrantFiled: September 23, 2011Date of Patent: April 14, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Sanghoon Lee, Sungchae Hyun, Hwan Kim, Nohyun Kwag
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Patent number: 8963445Abstract: The invention relates to a driver circuit for light sources, in particular LEDs, comprising a selection circuit, comprising at least one selection circuit element defined by an electric quantity having one of a plurality of pre-established electric quantity levels, and an electronic control unit (ECU), comprising a reference circuit, suitable for providing a reference electric quantity, and a regulation circuit of the driver current, suitable for establishing a driver current of the light sources on the basis of said reference electric quantity.Type: GrantFiled: September 5, 2013Date of Patent: February 24, 2015Assignee: Automotive Lighting Italia S.p.A.Inventors: Davide Baccarin, Andrea Englaro
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Patent number: 8952793Abstract: A bicycle electrical system is provided with a first electric component, a second electric component, and a third electric component. The first electric component includes a first electric power line communication section. The second electric component includes a second electric power line communication section. The third electric component includes a third electric power line communication section. The first and second electric power line communication sections are connected with a first electric power line such that the first and second electric power line communication sections conduct communications via the first electric power line. The second and third electric power line communication sections are connected with a second electric power line such that the second and third electric power line communication sections conduct communications via the second electric power line.Type: GrantFiled: March 15, 2011Date of Patent: February 10, 2015Assignee: Shimaro Inc.Inventors: Taihei Nishihara, Takafumi Suzuki, Shun Kou
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Patent number: 8946927Abstract: A control device includes a plurality of LED arrays connected to a ground and connected in parallel to one another, each of the plurality of LED arrays including one or more LEDs connected in series and a resistance element connected in series to the LEDs, a first switching circuit disposed between each of the plurality of LED arrays and a power source, a second switching circuit disposed between each of the plurality of LED arrays and the power source, a capacitor having one end connected to the first switching circuit and another end connected to the plurality of LED arrays, a voltage detection circuit having an end connected to the other end of the capacitor, and a control circuit that controls switching of conduction states of each of the first and second switching circuits, and reads a voltage from the voltage detection circuit.Type: GrantFiled: March 13, 2013Date of Patent: February 3, 2015Assignee: Omron Automotive Electronics Co., Ltd.Inventor: Yoichi Sakuma
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Patent number: 8941260Abstract: A vehicle light control device mounted on a vehicle to control lighting of a light of the vehicle based on illuminance around the vehicle, has an infrared sensor that detects an infrared ray around the vehicle, an infrared illuminance detector that detects infrared illuminance from an output of the infrared sensor, a visible-light sensor that detects visible light around the vehicle, a visible-light illuminance detector that detects visible-light illuminance from an output of the visible-light sensor, a storage in which a first lighting threshold is stored, and a controller that controls the lighting of the light based on the infrared illuminance detected by the infrared illuminance detector, the visible-light illuminance detected by the visible-light illuminance detector, and the first lighting threshold stored in the storage.Type: GrantFiled: July 10, 2013Date of Patent: January 27, 2015Assignee: Omron Automotive Electronics Co., Ltd.Inventors: Hiroyuki Fujiwara, Takahito Terayama
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Publication number: 20150015065Abstract: A power supply system for an electrified vehicle according to an exemplar aspect of the present disclosure includes, among other things, a primary power source and an auxiliary power source configured to selectively supply power in place of or in addition to the primary power source. At least one electrical connector is configured to connect the auxiliary power source to the power supply system.Type: ApplicationFiled: July 12, 2013Publication date: January 15, 2015Inventors: Jesse D.L. Brunais, Douglas Raymond Martin
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Patent number: 8922051Abstract: A current control module is used in a vehicle having a marker or tail lamp, a stop lamp, a left turn signal and a right turn signal. The current control module includes a circuit board and at least one wire coupled to the circuit board, the at least one wire corresponding to one of the marker or tail lamp, stop lamp, left turn signal or right turn signal. The current monitoring circuit includes a current sense resistor, a current sense amplifier, a voltage comparator, and a transistor coupled to the voltage comparator for turning off and preventing current from being delivered to the at least one wire corresponding to one of the marker or tail lamp, stop lamp, left turn signal or right turn signal.Type: GrantFiled: March 15, 2013Date of Patent: December 30, 2014Assignee: Truck-Lite Co., LLCInventors: Ryan Robert Romberger, Nedim Hamzic
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Patent number: 8878385Abstract: There is provided a discharge lamp controlling apparatus mounted on vehicles or others. The apparatus includes a discharge lamp, a power control section, a signal inputting section, and a storage which are united with each other. The signal inputting section allows a power command signal to be inputted from the outside of the apparatus, the power command signal being for commanding the value of power supplied to the discharge lamp, and extracts from the inputted power command signal commanded power values which command the value of the power. The storage section stores therein, at least, the newest commanded power value among the extracted commanded power values. The power control section controls the power supplied to the discharge lamp based on the newest command values stored in the storage section.Type: GrantFiled: August 30, 2011Date of Patent: November 4, 2014Assignee: Denso CorporationInventor: Yoshihiro Wanda
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Patent number: 8845155Abstract: A trailer adapter to connect a master electrical system of a towing vehicle with a subservient electrical system of a towed vehicle having a light connectable thereto is disclosed. In particular, the trailer adapter may include a body having at least one electrical interface, where the at least one electrical interface is capable of electrically engaging the electrical system of the towing vehicle. The trailer adapter may also include a light source operatively coupled to the body, where the light source is selectively changeable between at least two operative modes capable of providing illumination.Type: GrantFiled: June 18, 2012Date of Patent: September 30, 2014Assignee: Cequent Consumer Products, Inc.Inventors: Gregory Rotenberg, Jerry Corless
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Publication number: 20140252852Abstract: The invention relates to an electrical network (1) for a vehicle, comprising: a first circuit (2) comprising a first power source (7) and at least one first electronic component (8) powered by the first power source (7); and a second circuit (3) comprising a second power source (10) and at least one second electronic component (11) which can be activated and is powered by the second power source (10). The network (1) also comprises: a connecting member (5) between the first (2) and second (3) circuits, said connecting member (5) allowing, in a first configuration, an exchange of current of a first value between the first circuit (2) and the second circuit (3) and, in a second configuration, an exchange of current of a second value between the first circuit (2) and the second circuit (3), in which the second value is lower than the first value; and a control unit (17) which controls the configuration of the connecting member (5).Type: ApplicationFiled: October 5, 2012Publication date: September 11, 2014Applicant: VALEO SYSTEMES DE CONTROLE MOTEURInventors: Sylvain Decoster, Thierry Cheng, Cyrille Corniglion, Raymond Rechdan, Sylvain Delion
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Patent number: 8816526Abstract: An automotive lamp device is provided. The automotive lamp device includes a lamp housing into which a first lamp or a second lamp is inserted and which includes a plurality of lines, and a lamp driver module which is connected to a first line among the plurality of lines, supplies a first level of voltage and/or current to the first lamp if the first lamp is inserted into the lamp housing, and supplies a second level of voltage and/or current to the second lamp if the second lamp is inserted into the lamp housing.Type: GrantFiled: September 17, 2010Date of Patent: August 26, 2014Assignee: SL CorporationInventors: Hae-Seok Song, Dae-Kyu Kim, Eun-Sang Yu
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Patent number: 8786129Abstract: A control device includes a plurality of LED arrays connected in parallel to one another, each of the plurality of LED arrays including one or more LEDs connected in series and a resistance element connected in series to the LEDs, a voltage application circuit that applies a voltage to the plurality of LED arrays, a switching element disposed between the plurality of LED arrays and a ground, a voltage detection circuit having an end connected between the switching element and the plurality of LED arrays, a capacitor having an end connected between the switching element and the plurality of LED arrays, and another end connected to the ground, and a control circuit that controls the voltage outputted from the voltage application circuit and switching of conduction states of the switching element, and reads a voltage from the voltage detection circuit.Type: GrantFiled: March 13, 2013Date of Patent: July 22, 2014Assignee: Omron Automotive Electronics Co., Ltd.Inventor: Yoichi Sakuma
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Publication number: 20140183944Abstract: A multi-function switch for a vehicle that includes an operable rotary lever and a light control plate rotatably and integrally mounted on the rotary lever and having a plurality of slits. In addition, a light source radiates light through the light control plate and a photosensor receives the light radiated from the light source through the slits and generates output voltage signals that correspond to the quantities of the received light.Type: ApplicationFiled: December 16, 2013Publication date: July 3, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Chung Tae Kim, Tae Hyung Lee
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Patent number: 8736173Abstract: A lighting control apparatus for a vehicle is provided which works to diagnose a malfunction of a light source which includes a plurality of lighting devices such as LEDs and emits light outside the vehicle. The lighting control apparatus determines a state of the vehicle. When the light source is determined to be malfunctioning, the lighting control apparatus operates the light source in one of predetermined warning lighting modes which is selected based on the state of the vehicle. This attracts a vehicle user's attention to the malfunctioning light source.Type: GrantFiled: June 29, 2011Date of Patent: May 27, 2014Assignee: Denso CorporationInventors: Daisuke Nishitani, Yasutoshi Horii, Takahito Nishii, Tsutomu Kamizono, Takahiro Nakano
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Patent number: 8716883Abstract: Disclosed is a mobile terminal capable of converting an operational state of a controller thereof upon generation of a preset event and controlling an operational state of a particular terminal having a communication connection under control of the controller, and a control method thereof, the control method for controlling power functions within a vehicle telematics control unit comprising: accessing stored voltage information for a battery included in a vehicle; determining a present voltage characteristic of the battery based on measurements of voltage; determining whether a difference exists between the stored voltage information and the present voltage characteristic; converting an operational state of a vehicle telematics control unit responsive to determining that a difference exists; accessing threshold information associated with the battery; comparing the present voltage characteristic of the battery to the threshold information; determining whether the present voltage characteristic of the batteryType: GrantFiled: August 25, 2010Date of Patent: May 6, 2014Assignee: LG Electronics, Inc.Inventor: Sooyun Kim
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Patent number: 8716935Abstract: A light irradiation control system for a vehicle lamp includes a control unit configured to provide control signals for controlling light irradiation of the vehicle lamp based on detection signals detected by sensors. Actuator units are configured to control the light irradiation of the vehicle lamp based on the control signals. The control unit includes a body-side control unit and a lamp-side control unit. The body-side control unit is configured to perform signal processing on the detection signals and to provide the signal-processed signals to a common bus as common data. The lamp-side control unit, which is mounted in at least some of the actuator units, is connected to the common bus to provide the control signals based on the common data provided to the common bus.Type: GrantFiled: December 7, 2010Date of Patent: May 6, 2014Assignee: Koito Manufacturing Co., Ltd.Inventors: Yuichi Nakazawa, Toshihiko Kurebayashi, Tomoyuki Sakai, Katsumi Inoue, Hiroshi Otaka
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Patent number: 8653957Abstract: A visual indicator assembly and adaptor for a trailer includes an control circuit, an input lamp plug electrically coupled to the control circuit, an output lamp plug electrically coupled to the control circuit, and an identification lamp plug electrically coupled to the control circuit. The input lamp plug is connectable to a trailer lamp plug of a lamp wiring harness of the trailer. The output lamp plug is connectable to a stop lamp of the trailer. The identification lamp plug is connectable to a corresponding identification lamp plug of the lamp wiring harness. The control circuit is configured to supply a first voltage signal to a plurality of lamps of the trailer in response to a power signal and supply a second voltage signal to the plurality of lamps in response to a brake signal. The second voltage signal is greater than the first voltage signal.Type: GrantFiled: February 8, 2011Date of Patent: February 18, 2014Assignee: Wabash National, L.P.Inventors: Rodney Ehrlich, David Pickup
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Patent number: 8598735Abstract: A controller controls an illumination device of a motor vehicle including at least one light source. The controller includes at least one first stage that provides electric energy for supplying power to the illumination device. At least one second stage forwards the electric energy to the light source. The first stage includes intelligence for controlling the illuminating device, a first supplier for supplying the illumination device with control signals, a generator for generating a constant intermediate voltage, and a second supplier for supplying the second stage with the intermediate voltage. The second stage includes a converter for conversion of the intermediate voltage into a supply voltage suitable for supplying the power to the light source, a third supplier for supplying the light source with the supply voltage, and a mechanism for controlling the light source in dependency on the control signals. Also, an illumination device for a motor vehicle includes the controller.Type: GrantFiled: November 16, 2010Date of Patent: December 3, 2013Assignee: Automotive Lighting Reutlingen GmbHInventors: Michael Schnerr, Uwe Bormann
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Patent number: 8579795Abstract: Light modulation devices are provided. At least one Low Frequency Oscillator (LFO) is used to create an oscillating signal used to drive an intensity parameter, a color parameter or both in a light modulator. The oscillating signal may be mixed with a base signal. The modulated signal driving either of the intensity or color parameters may be simple or complex. Systems having a plurality of light projection devices, each associated with a corresponding light modulation device, are also provided. Such Light modulation systems may be used for a variety of applications.Type: GrantFiled: April 28, 2008Date of Patent: November 12, 2013Inventor: Alain Anadi Martel
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Patent number: 8466621Abstract: Vehicle indicator lights, such as run-brake lights and/or side running lights, are converted to run-turn-brake indicator lights. A run-turn-brake converter is connected to vehicle-supplied run, brake, left turn, and right turn signal leads, the run-turn-brake converter producing left and right run-turn-brake signals. Existing vehicle wiring is reconfigured by disconnecting a first lead wire from the low-intensity input of a first three-terminal brake-run light socket, disconnecting a second lead wire from the low-intensity input terminal of a second three-terminal brake-run light socket, disconnecting a third lead wire from the high-intensity input terminal of the second three-terminal brake-run light socket, and connecting the second lead wire to the high-intensity input terminal of the second three-terminal brake-run light socket. The left and right run-turn-brake signals are connected to the sockets via the second lead wire and via a fourth lead wire, respectively.Type: GrantFiled: October 14, 2010Date of Patent: June 18, 2013Assignee: Custom Dynamics LLCInventors: Dave Pribula, Evan J. Calarco
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Patent number: 8401741Abstract: A headlamp in an automobile, which is rotatable about a yaw axis when negotiating a bend, has a controller for controlling the rotary movement. In order to improve the illumination of a roadway lying in front of an automobile, the controller may take into account a driving profile.Type: GrantFiled: June 6, 2007Date of Patent: March 19, 2013Assignee: GM Global Technology Operations LLCInventors: Justus Illium, Torsten Kanning
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Patent number: 8373401Abstract: A step-up/step-down DC-DC converter includes a control section to compare an output value from voltage decrease or increase sections and a preset target value. A computation circuit provides a voltage value resulting from subtracting a difference between the voltage value of the comparison result and a first preset voltage value from a first voltage value. A drive pulse generation section generates a drive pulse for turning on and off a voltage decrease switch and a voltage increase switch in response to the result of a comparison between the computation output voltage and a ramp wave. When the voltage value of the computation output voltage exists between the first voltage value and the second voltage value, the drive pulse generation section provides control to selectively switch the on and off operation of the voltage decrease switch and the on and off operation of the voltage increase switch.Type: GrantFiled: February 10, 2011Date of Patent: February 12, 2013Assignee: Koito Manufacturing Co., Ltd.Inventors: Yusuke Kasaba, Masayasu Ito
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Patent number: 8362639Abstract: A light emitting diode drive device includes a drive circuit section that applies a direct-current voltage to a light source including a plurality of light emitting diodes connected in series to allow the light source to light up, a voltage detection circuit section that detects a voltage across the light source, and a malfunction determination circuit section that determines that the light emitting diode is short-circuited when the voltage detection circuit section detects a voltage drop and a potential between the voltage before being dropped and the voltage after being dropped is equal to or more than a predetermined threshold value. Thus, it is possible to detect a fact that a light emitting diode, which lights up, is short-circuited or is not short-circuited, with a simple circuit configuration.Type: GrantFiled: September 26, 2008Date of Patent: January 29, 2013Assignee: Panasonic CorporationInventor: Haruo Nagase
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Patent number: 8339046Abstract: A lighting control device of a lighting device for a vehicle includes a switching regulator for supplying a driving current to a semiconductor light source. The lighting control device also includes control means having a current detecting portion for detecting the driving current and serving to control dimming of the semiconductor light source in order to reduce a mean current of the driving current by repeating driving and stopping operations of the switching regulator at a high speed upon receipt of a dimming control signal. The current detecting portion has a current holding portion for holding the driving current, detected for a driving period of the switching regulator, for a stopping period after a passage of the driving period.Type: GrantFiled: December 23, 2009Date of Patent: December 25, 2012Assignee: Koito Manufacturing Co., Ltd.Inventors: Yusuke Kasaba, Masayasu Ito
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Patent number: 8294294Abstract: A snap-mounting type remote control switch possesses dual function of wired remote control and wireless remote control, which structure at least comprising an electric cable having three sets of leads, and a PC board having a MCU, a RF receiver and a power control circuit; wherein the MCU is for executing control of the power control circuit under wireless remote control mode according to RF control signal(s) received by the RF receiver to enable the power supplied from an electric power source to appear as an output through one or more sets of leads of the electric cable in the form of positive voltage or negative voltage; particularly the snap-mounting type remote control switch being mounted on a control panel of a vehicle is provided for a driver of the vehicle in application of wired or wireless remotely controlling a rotatable lamp fastened on the vehicle to adjust illumination angle in both vertical and horizontal direction.Type: GrantFiled: May 7, 2010Date of Patent: October 23, 2012Inventor: Shih-Yung Chiu
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Patent number: 8278834Abstract: A PWM control method increases/decreases a duty ratio of a PWM signal with a predetermined resolution so to control the duty ratio of the PWM signal in the case of a PWM control. The resolution of the duty ratio of the PWM signal is increased to make a high period in the duty ratio of the PWM signal longer than a rise time of the PWM signal if the high period is shorter than the rise time. The resolution of the duty ratio of the PWM signal is increased to make a low period in the duty ratio of the PWM signal longer than a fall time of the PWM signal if the low period is shorter than the fall time.Type: GrantFiled: October 24, 2008Date of Patent: October 2, 2012Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Nobuya Inamori
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Patent number: 8258702Abstract: In at least one embodiment, an ambient lighting system comprising a lighting module and a controller is provided. The lighting module is configured to drive a light emitting device (LED) arrangement to display a desired ambient color in response to a lighting control signal and to transmit a lighting status signal providing diagnostic information for one of the lighting module and the LED arrangement. The controller is configured to transmit the lighting control signal including first digital data indicative of the desired ambient color and a feed signal for powering the lighting module on a bi-directional data communication bus between the controller and the lighting module. The controller is further configured to receive the lighting status signal on the bi-directional data communication bus.Type: GrantFiled: May 21, 2009Date of Patent: September 4, 2012Assignee: Ford Global Technologies, LLCInventors: Mark Andre Zielinski, Karl William Wojcik, Robert Andrew Miller, James Martin Lawlis
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Patent number: 8253270Abstract: An automobile light control system includes first and second light groups, a battery, a micro control unit (MCU), a speed sensor, first and second switches, and an electronic switch. The battery is connected to the first light group through the first switch. The first light group is connected to the first terminal of the electronic switch through the second switch. The second terminal of the electronic switch is connected to the second light group. The control terminal of the electronic switch is connected to the MCU. The MCU is connected to the speed sensor to receive a speed signal. The MCU controls the electronic switch to be turned on in response to the speed signal being greater than a predetermined value. The MCU controls the electronic switch to be turned off in response to the speed signal being less than or equal to the predetermined value.Type: GrantFiled: August 23, 2010Date of Patent: August 28, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Ming-Chih Hsieh
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Patent number: 8217778Abstract: Brake light circuits for use with engine brakes for both positive switch and negative switch brake light circuits. The brake light circuits for the engine brakes do not function until the engine brake solenoids are energized. This ensures that only true brake indications are indicated. In the case of the positive switch, the circuit uses a relay in parallel with the existing brake light switch to active the brake lights whenever the engine brake solenoids are energized. In the case of the negative switch circuit, the original brake pedal switch is connected to ground. It is used to operate a brake light relay that sends positive power to the brake lights. A second relay is used to close the ground connection to activate the original engine brake relay. In both cases, diodes are used to prevent back feed through the bake solenoids or other components.Type: GrantFiled: October 30, 2009Date of Patent: July 10, 2012Inventor: Robert Kirkman
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Patent number: 8143741Abstract: An electric power generation control device for a motor vehicle is provided which ensures a satisfactory regenerative effect without entailing flickering of or reduction in life of headlights even if the headlights are turned on at all times. The electric power generation control device lowers the power generation voltage of an alternator when the electricity storage amount of a battery is at or above a predetermined level. While lighting of a headlight bulb is detected, lowering of the power generation voltage is restrained if the state of sunlight is equivalent to nighttime, and the power generation voltage is allowed to be lowered if the sunlight state is equivalent to daytime.Type: GrantFiled: November 24, 2008Date of Patent: March 27, 2012Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hiroshi Funakoshi, Hidehito Tomonari, Hitoshi Kamura
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Patent number: 8129909Abstract: A trailer light converter that is configured to operate lights of a towed vehicle from signals supplied from lighting circuits of a towing vehicle includes at least one input that is adapted to be connected with the lighting circuits of a towing vehicle and at least one output that is adapted to be connected with the lights of a towed vehicle. At least one switch is provided that is responsive to a signal applied to the at least one input to supply electrical power to the at least one output to illuminate at least one light of the towed vehicle. The at least one switch includes a switching transistor and an overload protector. The at least one switch is responsive to the signal applied to the at least one input to change to a low impedance state to supply power to the at least one output. The overload protector is responsive to an overload condition on the at least one output to turn the at least one switch to a high impedance state to remove power from the least one output.Type: GrantFiled: February 11, 2009Date of Patent: March 6, 2012Inventor: Eric J. Hoekstra
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Patent number: 8125101Abstract: A digitally encoded vehicle lamp switch system provided that supplies signals for controlling the lighting functions of a vehicle. The lamp switch system includes a multi-position switch circuit having a plurality of contacts. The multi-position switch contacts selectively connect a plurality of circuit connections of a vehicle lamp control module microprocessor to ground or open circuit conditions to provide digitally encoded signals to the microprocessor to selectively illuminate the vehicle lamps.Type: GrantFiled: August 16, 2000Date of Patent: February 28, 2012Assignee: Ford Global Technologies, LLCInventors: David J. Jaworski, Mark Christian Aaron, William E. Crafts
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Patent number: 8120201Abstract: An LED vehicle lighting apparatus including a fail-safe function can supply a plurality of LEDs connected in series with a requisite voltage that is larger than a supply voltage of a battery. The vehicle lighting apparatus can include a DC-DC convertor and a subsidiary feed circuit. The DC-DC convertor can be configured to supply the LEDs with a substantially constant current by a controller. At least one output of the subsidiary feed circuit is connected to an LED in the LEDs, and a switching element can also be connected between the LED and ground. When the controller has a breakdown or trouble, LEDs between the LED and ground can be directly lighted by the battery in accordance with a signal provided by the controller. Thus, the disclosed subject matter can provide various LED lighting apparatuses including a user friendly fail-safe function.Type: GrantFiled: November 5, 2009Date of Patent: February 21, 2012Assignee: Stanley Electric Co., Ltd.Inventor: Takashi Fujino
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Patent number: 8097976Abstract: A lighting controller has current driving means which include a shunt resistor connected in series to each of multiple LEDs to detect an LED driving current, a PMOS transistor connected to the positive electrode side of each of the LEDs, and an amplifier for sending an output according to the result of comparison between the respectively detected driving current values and a reference value, and which subject each of the PMOS transistors to ON/OFF operation. Control means includes a Zener diode ZD1 and a Zener diode ZD2 for detecting an abnormality occurring in the current driving means and for sending the abnormality detection result. The control means controls the PMOS transistor to be turned OFF after elapse of a predetermined time upon receipt of the abnormality detection result.Type: GrantFiled: February 3, 2009Date of Patent: January 17, 2012Assignee: Koito Manufacturing Co., Ltd.Inventors: Takayoshi Kitagawa, Yasushi Noyori, Masayasu Ito
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Patent number: 8078353Abstract: A self monitoring vehicle braking system includes multiple sensors that gather data associated with the braking system. The data includes wheel speed, road inclination, moisture associated with a surface of the braking system, and audio associated with the road. A processor receives the data from the sensors and processes the data to determine whether a condition of the braking system falls within defined limits and provides to the driver of the vehicle an indication of the braking system condition.Type: GrantFiled: September 11, 2009Date of Patent: December 13, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Kai Yun Yow, Poh Leng Eu
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Patent number: 8072147Abstract: The device according to the invention comprises a light source and electronic supply and control. The light source electronic supply and control comprises at least one circuit comprising at least one stack of chips formed from at least two power components (IGBTb1, IGBTh1). According to one embodiment, the light source comprises a discharge lamp and the circuit with stacking is a DC/AC converter supplying the discharge lamp. Preferably, the discharge lamp is of xenon type and the circuit with stacking is included in an electronic ballast of the device. In another embodiment, the circuit with stacking is included in an electronic module associated with the discharge lamp and forming therewith a compact assembly.Type: GrantFiled: July 7, 2006Date of Patent: December 6, 2011Assignee: Valeo VisionInventor: Jean Marc Nicolai
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Publication number: 20110291476Abstract: Vehicle indicator lights, such as run-brake lights and/or side running lights, are converted to run-turn-brake indicator lights. A run-turn-brake converter is connected to vehicle-supplied run, brake, left turn, and right turn signal leads, the run-turn-brake converter producing left and right run-turn-brake signals. Existing vehicle wiring is reconfigured by disconnecting a first lead wire from the low-intensity input of a first three-terminal brake-run light socket, disconnecting a second lead wire from the low-intensity input terminal of a second three-terminal brake-run light socket, disconnecting a third lead wire from the high-intensity input terminal of the second three-terminal brake-run light socket, and connecting the second lead wire to the high-intensity input terminal of the second three-terminal brake-run light socket. The left and right run-turn-brake signals are connected to the sockets via the second lead wire and via a fourth lead wire, respectively.Type: ApplicationFiled: October 14, 2010Publication date: December 1, 2011Applicant: CUSTOM DYNAMICS LLCInventors: Dave Pribula, Evan J. Calarco
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Patent number: 8068961Abstract: A headlight control system for use on a snow plow mounted on the front of a vehicle and a related method are disclosed that automatically, selectively illuminate the headlights of the vehicle in addition to the headlights of the snow plow only when the snow plow blade is in a down position such that it is not physically obstructing the headlights of the vehicle. The headlight control system and method only operate to turn on the vehicle headlights when the snow plow lights are turned on. The headlight control system and method are capable of operating both the low beam headlights and the high beam headlights of the vehicle in conjunction with the low beam headlights and the high beam headlights of the snow plow when the snow plow blade is lowered.Type: GrantFiled: June 17, 2008Date of Patent: November 29, 2011Assignee: Sno-Way International, Inc.Inventor: William F. Menze
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Patent number: 8053923Abstract: A light emitting diode apparatus that includes a single DC/DC converter section that has two circuits connected in parallel: a flyback type boosting circuit and a boosting circuit. The former includes a transformer and a switching device and the like to boost DC voltage of a DC power supply, and the latter includes a transformer and a switching device and the like to do likewise. A control section carries out switching control of the switching devices and in such a manner that shifts from each other the phases of current Ida and current Idb to be supplied from the two boosting circuits and to a plurality of LED and the like connected in series in a light emitting section.Type: GrantFiled: August 14, 2006Date of Patent: November 8, 2011Assignee: Mitsubishi Electric CorporationInventors: Norikazu Tateishi, Takashi Ohsawa
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Patent number: 8044532Abstract: A motorcycle includes a main switch, a main switch wiring connected to the main switch and extending downward from the main switch, and a headlight stay for supporting a headlight part provided in a vicinity of a lower part of the main switch as seen from a side of the vehicle. The motorcycle is constructed so that the main switch wiring extending downward from the main switch is disposed in an inside, concave portion of the headlight stay.Type: GrantFiled: May 29, 2008Date of Patent: October 25, 2011Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Takehiro Miyamoto
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Publication number: 20110241422Abstract: A wiring structure to supply power to a license light provided in a two-wheeled vehicle includes a wire, a connector, a vehicle-body-side harness, and a plug. The wire is connected to the license light attached to a fender support. The fender support is attached to a back surface of a rear fender which is detachably attached to a vehicle body. The connector is attached to a leading end of the wire and to the fender support. The vehicle-body-side harness is fastened to a vehicle-body frame with a fastener at a position lower than an attachment position of the connector. The vehicle-body-side harness extends upward toward the connector. The plug is provided to the vehicle-body-side harness and is connected to the connector to supply power from the vehicle body to the license light.Type: ApplicationFiled: March 2, 2011Publication date: October 6, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Koji SUZUKI, Kazuhiko Ono, Katsuhisa Yamada